22.

An expression can be plotted on a Veitch

diagram only after the expression has been

converted to minterm form and the correct

diagram drawn corresponding to the number of

possible minterms.

For simplicity, the

variables in each term should be arranged in

alphabetical order.

The Veitch diagram below

is for two variables, A and B.

Half of the total squares are assigned to

each variable; and half, to the complement of

each variable.

Each variable overlaps every

complement but its own.

A Veitch diagram for

two variables contains______________ squares.

four

23.

Which squares above are assigned to the

following variables?

____ a.

A

____ c.

A

____ b.

B

____ d.

B